In the 1900s, there was a strong prejudice against Irish immigrants and their descendants. Editorial cartoons often depicted the Irish as physically distinct and as looking like apes. What does this tell you about the history of race in the United States?

The Irish were once considered to be a separate race.

Explanation:

The Irish people were not considered to be white. They were a despised race in the United States and were regarded as a subhuman specie. They were drawn as lazy, unclean, drunken people who were full of crime and bred like rats. They were considered as black people turned inside out. Cartoons were made which depicted the Irish as Apes. They faced great oppression in the United States.